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Old 06-10-2023, 04:18 AM   #1
MakeTopSite
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Leap 15.5: unstable wifi connection


It sometime works, sometime doesn't. This problem is not present on another laptop (Ubuntu) connected to the same wifi router.

Code:
# systemctl restart NetworkManager
did not help.

Code:
# systemctl status NetworkManager
● NetworkManager.service - Network Manager
     Loaded: loaded (/etc/systemd/system/NetworkManager.service; enabled; vendor preset: disabled)
     Active: active (running) since Sat 2023-06-10 10:24:22 CEST; 18min ago
       Docs: man:NetworkManager(8)
   Main PID: 25582 (NetworkManager)
      Tasks: 4 (limit: 4915)
     CGroup: /system.slice/NetworkManager.service
             ├─ 25582 /usr/sbin/NetworkManager --no-daemon
             └─ 25888 /sbin/dhclient -d -q -sf /usr/lib/nm-dhcp-helper -pf /var/run/NetworkManager/dhclient-wlan0.pid -lf /var/lib/NetworkManager/dhclien>

Code:
# journalctl -r
Jun 10 10:42:58 maketopsite /usr/lib/gdm/gdm-x-session[12422]: gvim -f
Jun 10 10:40:04 maketopsite systemd[1]: NetworkManager-dispatcher.service: Deactivated successfully.
Jun 10 10:39:54 maketopsite dns-dnsmasq.sh[27598]: <debug> NETWORKMANAGER_DNS_FORWARDER is not set to "dnsmasq" in /etc/sysconfig/network/config -> exit
Jun 10 10:39:49 maketopsite dns-dnsmasq.sh[27571]: <debug> NETWORKMANAGER_DNS_FORWARDER is not set to "dnsmasq" in /etc/sysconfig/network/config -> exit
Jun 10 10:39:48 maketopsite systemd[1]: Started Network Manager Script Dispatcher Service.
Jun 10 10:39:48 maketopsite dbus-daemon[1263]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Jun 10 10:39:48 maketopsite systemd[1]: Starting Network Manager Script Dispatcher Service...
Jun 10 10:39:48 maketopsite dbus-daemon[1263]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':>
Jun 10 10:38:01 maketopsite lxpanel[12422]: Unhandled action type _OB_WM_ACTION_UNDECORATE
Firefox:
Code:
Um, we can’t find this site.

Unable to connect to server at linuxquestions.org.

If the address entered was correct, you can:

    Try again later
    Please check your network connection
    Check that Firefox has permission to access the Web (your connection could be effective, but protected by a firewall)
Code:
maketopsite@maketopsite:~> lynx https://www.linuxquestions.org

Looking up www.linuxquestions.org
Unable to locate remote host www.linuxquestions.org.
Alert!: Unable to connect to remote host.

lynx: Can't access startfile https://www.linuxquestions.org/
Code:
# lspci -v
05:00.0 Network controller: Intel Corporation Centrino Wireless-N 135 (rev c4)
	Subsystem: Intel Corporation Centrino Wireless-N 135 BGN
	Flags: bus master, fast devsel, latency 0, IRQ 31
	Memory at f7c00000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: [c8] Power Management version 3
	Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
	Capabilities: [e0] Express Endpoint, MSI 00
	Capabilities: [100] Advanced Error Reporting
	Capabilities: [140] Device Serial Number xxxxxxxxx
	Kernel driver in use: iwlwifi
	Kernel modules: iwlwifi
Anyone other has please similar problem ?
 
Old 06-16-2023, 04:15 AM   #2
ferrari
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Start by monitoring NM logging in a terminal
Code:
sudio journaltl -fu NetworkManager
When the connection drops, observe/share the output from around that time.

It is possible to start a wifi connection without NetworkManager, by using wpa_supplicant (for diagnostic purposes). You'd need to stop NetworkManager first, and you may need to install wpa_supplicant-gui as well...

https://en.opensuse.org/SDB:WiFi
 
Old 06-16-2023, 09:25 AM   #3
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Quote:
Originally Posted by ferrari View Post
Start by monitoring NM logging in a terminal
Code:
sudio journaltl -fu NetworkManager
When the connection drops, observe/share the output from around that time.

It is possible to start a wifi connection without NetworkManager, by using wpa_supplicant (for diagnostic purposes). You'd need to stop NetworkManager first, and you may need to install wpa_supplicant-gui as well...

https://en.opensuse.org/SDB:WiFi
Thank you. Seems to be solved after change of the DNS.
 
Old 06-16-2023, 02:42 PM   #4
ferrari
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Thanks for the update. Nothing to with unstable wifi connection as the title suggested then.
 
Old 07-12-2023, 02:23 AM   #5
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Quote:
Originally Posted by ferrari View Post
Thanks for the update. Nothing to with unstable wifi connection as the title suggested then.
I'm sorry I'm not sure what exactly you mean.
 
Old 07-12-2023, 04:22 PM   #6
ferrari
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Quote:
Originally Posted by MakeTopSite View Post
I'm sorry I'm not sure what exactly you mean.
Well, you mentioned changing DNS was the solution. That has nothing to do with wifi stability.
 
Old 07-22-2023, 08:36 AM   #7
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Quote:
Originally Posted by ferrari View Post
Well, you mentioned changing DNS was the solution. That has nothing to do with wifi stability.
Every correction / improvement of gammar is welcome. How do you please understand the term "unstable wifi connection" ?
 
Old 07-22-2023, 04:06 PM   #8
ferrari
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In the context of a wireless connection, it is one where the status is frequently going from associated to dissociated and back again. Usually as a result of interference, weak signal, or excessive roaming.

In any case as you claim that your network issue (due to DNS) is resolved then there is no need to discuss further in this protracted fashion.
 
Old 08-06-2023, 12:43 PM   #9
MakeTopSite
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Quote:
Originally Posted by ferrari View Post
In the context of a wireless connection, it is one where the status is frequently going from associated to dissociated and back again. Usually as a result of interference, weak signal, or excessive roaming.

In any case as you claim that your network issue (due to DNS) is resolved then there is no need to discuss further in this protracted fashion.
Than you for explanation.

I'm sorry DNS change did not help in all cases.
 
  


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